Similar Triangles

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Angles, Sides & similarity ratio

A helpful scientific calculator that runs in your web browser window.

All about triangles.

This site shows the definition of similar polygons with the relationship of corresponding angles and how corresponsing sides are in proportion.

Similar triangles - sides, medians, perimeters, altitudes all in same proportion.

Similar triangles - ratio of areas is the square of the ratio of the sides.

Similar triangle test: SAS, AA, SSS

Very basic intro to similar triangles including a definition of similar triangles

Discusses ratios of similar triangles

This site gives a brief explanation of similar triangles with examples and practice problems for finding the similarity ratio of two similar triangles.

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